TinyTransfer is an online file sharing tool, 100% responsive,simple and clean File sending and sharing built with PHP, HTML5, CSS3, jQuery using spectre.
Demo: https://codecanyon.net/item/tinytransfer-send-files-around-the-world/27751606
JoomSMS is the best SMS extension for Joomla that allows you to send follow-up campaigns, auto-responders, newsletters, promotions, offers, automated messages... via SMS/text messages.
Demo: https://www.joomboost.com/joomla-components/207-joomsms.html